中国城市土地利用效率及其溢出效应与影响因素   总被引：12，自引：2，他引：10  

王良健  李辉  石川 《地理学报》2015,70(11):1788-1799

基于C-D函数剔除城市经济非期望产出构建随机生产函数模型,以地均投入产出技术效率表征城市土地利用效率,采用2003-2012年282个地级以上市面板数据测算了中国城市土地利用效率,并建立空间滞后计量模型分析了城市土地利用效率的溢出效应与影响因素的区域差异。结果表明：① 中国城市土地利用效率有所提升,且存在明显的空间特征与区域差异。空间特征显示,效率较高的城市主要集中在珠三角、湖南、湖北、河南南部、安徽东部、山东与江苏交界处。区域差异显示,中部地区城市土地利用效率最高而东北地区最低,西北地区城市土地利用效率增速最快而西南地区较低且增速最慢;② 中国城市土地利用效率存在显著为正的溢出效应,其中在中部、东北、西北地区较高,而在西南地区最低;③ 影响因素在各区域对城市土地利用效率的作用存在明显差异,有必要采取具有区域针对性的措施提升城市土地利用效率。  相似文献   

应对"南博会"机遇构建广西边境旅游"新三角"     

陈桂秋 《世界地理研究》2004,13(1):81-86

广西边境旅游依托边境的特殊区位和特色旅游资源得到稳步发展,“南博会”对广西边境旅游大发展是一个难得的机遇,借助“南博会”的联动效能,加快资源整合,建构边境旅游新三角,积极参与区域旅游协作,拓宽边境旅游发展空间,实现边境旅游的新跨越。  相似文献   

BOOK REVIEWS     

《The Professional geographer》1985,37(3):357-389

Book Reviewed in this article: Redundant Spaces in Cities and Regions? Studies in Industrial Decline and Social Change . J. Anderson, S. Duncan and R. Hudson. eds. The Social Consequences and Challenges of New Agricultural Technologies . Gigi M. Berardi and Charles C. Geisler, eds. Determinants of Fertility in Developing Countries, Vol. I, Supply and Demand for Children . Rodolfo A. Bultao and Ronald D. Lee, eds. Computer Mapping: Progress in the‘80s . James R. Carter. Washington: Colonial Africa . A. J. Christopher. Geography of the Soviet Union . J. P. Cole. Chicago Mapmakers, Essays on the Rise of the City's Map Trade . Michael P. Conzen, ed. Changes in the Land: Indians, Colonists and the Ecology of New England . William Cronon. Mizner's Florida: American Resort Architecture . Donald W. Curl. Geographical Studies on the Soviet Union: Essays in Honor of Chauncy D. Harris . George Demko and Roland J. Fuchs, eds. Fluvial Hydrology . S. Lawrence Dingman. Pueblo Indian Water Rights: Struggle For a Precious Resource . Charles T. DuMars, Marilyn O'Leary and Albert E. Utton. Women in the Cities of Asia: Migration and Urban Adaptation . James T. Fawcett, Siew-Ean Khoo, and Peter C. Smith, eds. America's National Parks and Their Keepers . Ronald A. Foresta. Neighborhood Revitalization and the Postindustrial City . Dennis E. Gale. China in Canada: A Dialogue on Resources and Development . R. Louis Gentilcore, ed. China: The 80s Era . Norton Ginsburg and Bernard A. Lalor, eds. Boulder, CO: Global Resources: Challenges of Interdependence . Martin I. Glassner, ed. River Networks . Texas: A Geography . Terry G. Jordan with John L. Bean, Jr. and William M. Holmes. The American Frontier: An Archaeological Study of Settlement Pattern and Process . Kenneth E. Lewis. Water Resources, Geography and Law . Olen Paul Matthews. A Field Guide to American Houses . Virginia and Lee McAlester. Population: Patterns, Dynamics, and Prospects . James L. Newman and Gordon E. Matzke. Wood, Brick, and Stone, The North American Settlement Landscape, Vol. 1: Houses . Allen G. Noble. Historical Analysis in Geography . William Norton. The Displaced Worker and Community Response: Case Study of Portsmouth, Scioto County, Ohio . H. Milton Patton and Janet W. Patton. Disaster Management: Warning Response and Community Relocation . Ronald W. Perry and Alvin H. Muskatel. The Anthropology of Space: Explorations into the Natural Philosophy and Semantics of the Navajo . Rik Pinxten, Ingrid van Dooren, and Frank Harvey. What STYLE Is It? A Guide To American Architecture . John C. Poppeliers, S. Allen Chambers, Jr., and Nancy B. Schwartz. Appalachia: A Regional Geography—Land, People and Development . Karl Raitz and Richard Ulack. An Introduction to Urban Geography . John R. Short. Ford, A Village in the West Highlands of Scotland: A Case Study of Repopulation and Social Change in a Small Community . John B. Stephenson. Income and Jobs: USA Diagnosing the Reality . George Sternlieb and James W. Hughes. Weather and Climate of the Antarctic . W. Schwerdtfeger. History and Ecology: Studies of the Grassland, James C. Malin . Robert P. Swierenga, ed. Optimal Control of Spatial Systems . K. C. Tan and R. J. Bennett. Social Science and Revolutions . Stan Taylor. The Global Textile Industry . Brian Toyne, Jeffrey S. Arpan, David A. Ricks, Terence A. Shimp and Andy Barnett. Integrated Water Development: Water Use and Conservation Practice in Western Colorado . James L. Wescoat, Jr. Proceedings of the First International Symposium on Maps and Graphics for the Visually Handicapped . Joseph W. Wiedel, ed.  相似文献   

A diversified multiobjective GA for optimizing reservoir rule curves     

Li Chen  James McPhee  William W.-G. Yeh 《Advances in water resources》2007

The paper develops an efficient macro-evolutionary multiobjective genetic algorithm (MMGA) for optimizing the rule curves of a multi-purpose reservoir system in Taiwan. Macro-evolution is a new kind of high-level species evolution that can avoid premature convergence that may arise during the selection process of conventional GAs. MMGA enriches the capabilities of GA to handle multiobjective problems by diversifying the solution set. Simulation results using a benchmark test problem indicate that the proposed MMGA yields better-spread solutions and converges closer to the true Pareto frontier than the nondominated sorting genetic algorithm-II (NSGA-II). When applied to a real case study, MMGA is able to generate uniformly spread solutions for a two-objective problem involving water supply and hydropower generation. Results of this work indicate that the proposed MMGA is highly competitive and provides a viable alternative to solve multiobjective optimization problems for water resources planning and management.  相似文献   

基于东北航线的中欧贸易研究   总被引：1，自引：0，他引：1  

王武林  王成金 《地理学报》2021,76(5):1105-1121

东北航线因其战略地位重要而日益受到世界各国的关注。本文计算出中欧港口航运经济成本及中欧国家贸易互补指数,基于东北航线构建随机前沿贸易引力模型,探究中国对欧洲18国进出口贸易的影响因素,结果发现：① 以12000 TEU运输量为对比,中欧港口基于东北航线的航运经济成本约为传统航线的1.58~2.80倍。② 2000—2018年间,基于中国出口的中欧贸易互补指数CE_ij>1的次数占52.63%,CE_ij较高的对应国家包括冰岛、丹麦、挪威、法国、瑞典和英国等国家;基于中国进口的中欧贸易互补指数CI_ij＜1的比例高达94.74%,呈下降趋势,中国进口与欧洲18国出口的互补性较差。③ 在中国向欧洲18国出口的贸易规模方面,贸易伙伴国经济规模比中国经济规模的影响更大,东北航线航运经济成本与贸易规模显著负相关;在中国向欧洲18国进口的贸易规模方面,贸易伙伴国经济规模比中国经济规模的影响更大,东北航线航运经济成本与贸易规模正相关关系的置信度较低。④ 以东北航线为中欧贸易通道,中国向欧洲18国的出口贸易效率和进口贸易效率分别呈现出不同程度的下降和上升趋势,中国对欧洲18国进出口贸易效率的提升空间较大。本文强化了东北航线与中欧航运及贸易之间关系的研究,为中国参与东北航线建设、北极资源的开发利用以及加强中欧贸易等方面提供参考。  相似文献   

国内外交通地理学研究进展的比较     

王帮娟  刘承良 《世界地理研究》2022,31(1):53-63

基于WOS和CNKI数据库中文献样本数据,利用CiteSpace软件,绘制知识可视化图谱,回顾了国内外交通地理学的研究进展,从3个阶段比较了两者的异同。结果显示：国内外研究都呈现出问题导向,已具有了较为系统的研究体系。国外交通地理学研究具有较强的社会导向和人本导向,侧重于全球、跨国、跨区域等大尺度和微观视角的研究,研究重视定性和定量的结合,以及规律总结和机制探索,呈现出批判性和多样化特点;国内研究则以国家、区域战略和政策为导向,侧重于宏观尺度,研究区域和行政区划有很高的重合度,研究重视基于空间计量探讨空间格局、空间结构和时空演变规律,但缺乏对形成机理更深层次原因的探讨,研究具有“任务带学科”和“经世致用”的特点。最后展望了国内交通地理学未来研究发展趋势。  相似文献